Tire.



J. J. PATTON.

TIRE.

APPLIOATIOI'I FILED SEPT. e, 1910.

Patented F610. 6, 1912.

JOHN J. PATTON, OF NEW YORK,- N. Y.

TIRE.

Specification of Letters Patent:

Patented Feb. 6, @912 Application filed September 8, 1910. Serial No. 5 303.

guiiein' ts of he traction, as in the case more V do, where exceptional strength and a e most; desirable (3Ql1'llI)lI1(l with it-y of structure, and ease of substi- Patent No. 979,883 issued to me to, 1310, 1' show and describe a one annular me' he SllTUl'ili-Oll base plate on formed with ctmtinuous peripheral do it (y s with relatively short tread sock iotu'cen them in conjiiinct-ionwith a cap ole L.) formed to seciiire a plurality of treads in their seats.

My present invention consists in the spetruclion and arrangement. of parts rtcr dcseriberfl and clain'ied, \i lierel y the treads are effectually and POSlilVOlfV secured in POSltlOIl.

in the accompanying drawings: Figure 1, represents a face view of a nirtion of a two tread tire made in accordance with my invention, parts being broken a my and in section to show the cons ,uction: Fig. zest-(ii ,al elwati n upt a larger s ale of ion of the rim and tire; Flog. Y). is a I scale;

, of a bread in outc Lire pl,v e l consists of a continuous simmer metallic rim formed in one o c with the ouoturned circmnfercntial tlln'igcs 2 which in the presentcase also have their peripheral eoges intur'ned to form the retaining shoulders Otherwise the cylindrical rim B is perfectly plain Without intermediate ribs or partitions on its face In other Words the tread sockets shown in myisaid Letters Patent No. 939,883

vare dispensed. with, and continuous base .r-ubbcr treads l, are used. In this connection lt IlS to be understood that by the term rubber tread l mean to designate any elastic t the conditions and reresilient tread adapted to the purpose, as is I Known in the art. u lire continuous base t, of the tread T formed with side flanges t, F, projecting laterally on each side of the tread body, and having inclined surfaces .The under surfaces 6 of the circumferential retaining shoulders b, are correspondingly inclined,

caps C, to-c'ontactwith the said inclined surfaces i on the treads. The tread side flanges which contact'with the Wedge caps C, are also formed with rectangular shoulders zf'fl which engage with the sidc shoulders 0, 0,011 the Wedge cap (I. For the letteringsee mainly F igs. 3 and 4. Each wedge cap C is secured by screw bolts 8, and nuts n the bolts passing through the Wedge caps, the rim l3, and the telly R ofthe Wheel, upon which latter the said rim is shrunk. The Wedge. caps do not bear directly againstthe rim. That is to say they do not come in contact thcreWith,-the wedges .0, 0, being purposely made too short to reach the face of the rim even when fully driven home. Thus thetread is forced or wedged over against the circumferential retaining flange 7), and firmly and positively locked in position. This ar-v admits of the taking up of slack arising 'Fnom wear and tear in use, since a ma i'gin of adjustment of bolts is afforded, as will he reaclih: seen and understood by reference to Fig. 3.

li v referring to 3(it. will be seen that the posithims of the bolts are at one side of ihe tire. and by making); this the front or outer side of the wheel I obviously gain the mlvantagc of having the bolts readily accessiblcfrom said timid-(1r outer face of the Wheel. It is a'well known custom, in the manufacture ofhcavy traction wheels or rear side of jtllfil'll'n so as to render the maximum of space between the spokes of opposite side Wheels available for truck body, &c. Hence my arrzu'igcmcnt of bolt ing through. the wedge caps C, at the outer side of the tread renders the bolts conveniently accessible from the front or outer :-;ide of a wheel so that a damaged tread may 1 be removed and another substituted Withas are also the under sides of the Wedge rangement and construction of parts also especially, to offset, the spokes to the inner out removing the wheel from its axle.-a

new and important practical result. Thus {repairs to my form' of tire can heaven made en route quickly and conveniently while the av wheel is on its axle, and without detaching any art other than the wedge cap and the 't involved; v

. in my 'Letters Patent hereinbefore referred to the-circumferential side flanges 'b, of the rim B perform a double function yin that they notonly in the present case I afford adequate means in conjunction with the wedge caps C whereby the treads are positively locked in position on the tire base 15. plate, but they also act as side guards or fenders to protect the treads against contact with curbs or'other extraneous objects.

I The structure herein shown and described is obviously very simple, substantial and =20 efiective,'and especially adapted to'the ex- ,jzitztmg requirements of hea\y traction.

It also has the advantage that it enables me to arrange the retaining bolts nearer or further apart, or as may be found most expedient,

i without regard to the position of the spokes of,the wheel, which an important advanf tage in construction.

*hat- I claim as my invention and desire to secure by Letters Patent is:

f In a tire comprising a plurality of continuous-basc treads, the combination with I the base plate B, formed with the circumferential side flanges b, retaining shoulders 7/, and inclined surfaces 11 elastic resilient treads T, formed with base flanges 15, t in- ?clined surfaces t, and shoulders t, of a {wedge cap C, formed-with the shoulders ;(3, andwedge c, of less depth than the tread flanges t and screw bolts securing the said wedge cap C, in position against I the said tread flanges i but out of contact with the base plate B, substantially in the i manner and for the'purpose set forth.

JOHN PATTOX.

Gno. Win. MiA'i r,

lvitncssesz i LILLIA MIArr. 

